CAPAs and Trending of Quality Data
Measurement Systems Analysis
Spec Setting, Tolerance Analysis and Robust Design
Statistical Process Control
Design of Experiments
- Dr. Wayne A. Taylor
- Ann Taylor
- 1 (847) 367-1032
- 1 (847) 367-1037
- Postal address
- 5510 Fairmont Rd.
Libertyville, IL 60048
- Electronic mail
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Change-Point Analyzer Software
Version 2.3 for Windows XP, Vista, 7, 8 and
10, including the 64-bit versions.
What is Change-Point Analyzer?
Change-Point Analyzer is a shareware software
package for analyzing time ordered data to determine whether a change has taken
place. It detects multiple
changes and provides both confidence levels and confidence intervals for each
change. The results are clearly displayed in table form and supplemented by easy to
interpret plots. It can be used with all types of data: pass/fail, individual
values, averages, ranges, standard deviations, normal, nonnormal and ill-behaved data like
bioburden and particulate counts. It can be used to trend complaints, inventory turns,
sales, particulate counts and just about anything else.
Change-Point Analyzer is simple to use, even for someone with no experience
with control charting. It can be learned in about 15 minutes by following
the tutorials provided below. It automatically verifies assumptions,
checks for outliers and guides the user in handling such special cases. It
even comes with a Excel Add-In making it possible to perform the analysis
directly from Excel. For those in FDA regulated industries, it comes
complete with a validation package.
Change-Point Analyzer is an important problem solving tool which can be used
to complement real-time control charts. Analyzing control charting data using
help to better isolate the time of a change, help to identify more subtle changes missed
by the control chart, and expose false detections.
When performing a one-time analysis on historical data, a change-point analysis is
preferred to control charting, especially when you are dealing with large data
sets. When performing such
analyses, a change-point analysis has numerous advantages
over a control chart.
Change-Point Analyzer was developed by Dr. Wayne
Taylor. It utilizes state of the
art techniques including CUSUM charts and bootstrap analysis.
Detects multiple changes
For each change:
Handles all types of data: pass/fail, individual values, averages, ranges, standard
deviations, normal, nonnormal, counts, and ill-behaved data like bio and particulate
More powerful than control charts at detecting sustained
changes including detection of multiple changes, providing associated
confidence levels, and providing confidence intervals for the times of the
Reduces the number of false detections when dealing with large data sets.
The same procedure works for all types of data.
Simpler to use and easier to interpret
- Change-Point Analyzer received ZDNet's four star rating.
Download Full Version of Software - Try Free for 30 Days
version of the software can be downloaded below. After installing you can
use it for free for a 30-day trial. After 30 days, if
you want to continue using the software, you must purchase it at a
cost of US$80 ($86.60 for residents of Illinois). Click the button below
to download the installation program. The file cpa12.exe will be downloaded. Running this file
will install the software on your system including the tutorials.
To get started using the program, read the tutorials
shown below. Further
information can be found in the help system.
at our store
To continue using the software after the
30-day trial period, you must purchase the software at a cost of US$80 ($86.60
for residents of Illinois). You can purchase the software using our
web store. Otherwise you can
purchase by Fax or mail using the
following order form. Also available
are site licenses.
A user name and registration code will be emailed to you along with further
instructions allowing you to
continue using the software. You also get free upgrades for 1 year.
Tutorials: To learn how to use Change-Point Analyzer
and see examples of it in action, select any of
the following. You must have a copy
of the free Adobe Acrobat Reader® to view the
Technical Articles: For those who want
to understand how Change-Point Analyzer works.
Articles Published by our Customers: See
how change-point analysis is being used.
The Impact of a Celebrity
Promotional Campaign on the use of Colon Cancer Screening: The Katie
Couric Effect - Peter Cram, A. Mark Fendrick, John Inadomi, Mark E.
Cowen, Daniel Carpenter, Sandeep Vijan - Archives of
Internal Medicine (July 14, 2003), Vol. 163, 1601-1605.
Changes in Synchronization in Human Basal Ganglia - Michael Cassidy,
Paolo Mazzone, Antonio Oliviero, Angelo Insola, Pietro Tonali, Vincenzo Di
Lazzaro and Peter Brown - Brain (2002 June), 125 (Pt 6), 1235-46. Brain is a prestigious neuroscience journal.
Change-point analysis was used to analyze the reaction of the brain track
to certain stimulus allowing comparisons between treated and untreated
patients with Parkinson's disease.
Oscillations in Parkinson's Disease - G. Foffani, A. Priori, M. Egidi,
P. Rampini, F. Tamma, E. Caputo, K. A. Moxon, S. Cerutti and S. Barbieri - Brain
(2003 August 21), 126, 2153-2163. Brain is a prestigious neuroscience journal.
Change-point analysis was used to analyze changes in the 300-Hz
oscillations in response to a motion stimulus so that the resulting
changes could be compared before and after the administration of levodopa.
Use of Change-Point Analysis for Process Monitoring and Control: A
better method for trend analysis than CUSUM and control charts -
Patrick Gavit, Yasser Baddour, Rebecca Tholmer BioPharm International, August 2009
Was King John of England bipolar?: a medical history using mathematical
modelling - Gillespie, Janet, Ph.D. Thesis, University of St
Variability Detection by Change-Point Analysis, Seo-Won
Chang and Yong-Ik Byun, Department of Astronomy, Yonsei University, Seoul,
An event-state depiction algorithm using CPA methods with
continuous feed data, Philip Sallis and Sergio Hernández (http://ieeexplore.ieee.org/document/5961229/)
Urban Wind Speed Analysis in Global Climate Change
Perspective: Karachi as a Case Study, Muhammad A. Hussain,
Muhammad J. Iqbal, Safeeullah Soomro (http://www.scirp.org/journal/PaperInformation.aspx?PaperID=23987)
Stochastic Differential Equation Based Software Reliability
Growth Modeling With Change Point and Two Types of Imperfect Debugging,
P.K. Kapur1, Ompal Singh2 and Jagvinder Singh3 (http://www.bvicam.ac.in/news/INDIACom%202011/352.pdf)
Observed Abrupt Changes in Minimum and Maximum Temperatures in
Jordan in the 20th Century, Mahmoud M. Smadi (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=47&cad=rja&ved=0CGwQFjAGOCg&url=http%3A%2F%2Fthescipub.com%2Fpdf%2F10.3844%2Fajessp.2006.114.120&ei=hB8jUuK_Ae28sQSgrYH4AQ&usg=AFQjCNHONK05v0M4xzxGzXGBOo0bYWNRkA&bvm=bv.51495398,d.aWc)
Abrupt changes in air temperature and precipitation - do they
matter for organic matter? Temnerud, Johan and Weyhenmeyer,
Gesa (2007). (http://onlinelibrary.wiley.com/doi/10.1029/2007GB003023/pdf)
Technical Proficiency in Hand-Assisted Laparoscopic Colon and
Rectal Surgery : Determining How Many Cases Are Required to Achieve
Mastery, Rajesh Pendlimari, MBBS; Stefan D. Holubar, MD; Eric J.
Dozois, MD; David W. Larson, MD; John H. Pemberton, MD; Robert R. Cima,
MD, MA (http://archsurg.jamanetwork.com/article.aspx?articleid=1151002)
Do phytoplankton communities evolve through a self-regulatory
abundance–diversity relationship? Shovonlal Roy (http://shovonlalroy.webs.com/publications/roy_biosystems2009.pdf)
Automatic Bandwidth Adjustment for Content, Distribution in
MPLS Networks, D. Moltchanov (http://www.cs.tut.fi/~moltchan/pubs/bandwidth2008.pdf)
TEMPERATURE AND PRECIPITATION CHANGES IN TÂRGU-MURES (ROMANIA)
FROM PERIOD 1951-2010, O.RUSZ 1(http://aerapa.conference.ubbcluj.ro/2012/pdf/54%20Rusz%20O.pdf)
A quasi-experimental test of an intervention to increase the
use of thiazide-based treatment regimens for people with hypertension,
Carol M Ashton*1,2,3,4, Myrna M Khan2,3, Michael L Johnson2,3, Annette
Walder2, Elizabeth Stanberry5, Rebecca J Beyth1,2,3,4, Tracie C
Collins1,2,3,4, Howard S Gordon1,2,3,4, Paul Haidet1,2,3,4, Barbara
Kimmel2, Anna Kolpakchi1,4, Lee B Lu1,4, Aanand D Naik1,2,3,4, Laura A
Petersen1,2,3,4, Hardeep Singh1,2,3,4 and Nelda P Wray1,2,3,4 (http://www.biomedcentral.com/content/pdf/1748-5908-2-5.pdf)
Assessment of Distribution Based SRGM with the Effect of
Change-Point and Imperfect Debugging Incorporating Irregular Fluctuations,
Ompal Singh1, Adarsh Anand1,*, Jagvinder Singh1 and P. K. Kapur2
1,*Department of Operational Research, University of Delhi, Delhi, India
2Amity International Business School, Amity University, Noida, U.P., India
Abrupt changes in air temperature and precipitation: Do they
matter for water chemistry? J. Temnerud1 and G. A. Weyhenmeyer1 (http://onlinelibrary.wiley.com/doi/10.1029/2007GB003023/pdf)
Evaluation of a Denitrification Wall to Reduce Surface Water
Nitrogen Loads, Casey A. Schmidt * and Mark W. Clark (https://www.soils.org/publications/jeq/articles/41/3/724)
Climatic controls on phytoplankton biomass in a sub-tropical estuary,
Florida Bay, USA., Henry O. Briceño and Joseph N. Boyer (http://digitalcommons.fiu.edu/cgi/viewcontent.cgi?article=1034&context=fce_lter_journal_articles)
ANALYSIS OF ANNUAL SUMS OF PRECIPITATION IN SERBIA,
Gorica Stanojević*1 *Geographical Institute „Jovan Cvijić“ SASA, Belgrade